P2819 - Pressure Control Solenoid 'G' Electrical
The P2819 code indicates an electrical malfunction in the pressure control solenoid 'G', which is part of the transmission's hydraulic control system. This solenoid regulates fluid pressure for clutch or band application. An electrical fault—such as an open or short circuit—can cause erratic shifting, harsh engagement, or transmission slippage. The issue may stem from damaged wiring, a faulty solenoid, or a failing transmission control module (TCM).
1. Most Common Causes
- Faulty pressure control solenoid 'H' (open or shorted coil)
- Damaged, corroded, or loose wiring or connectors in the solenoid 'H' circuit
- Short to ground or battery voltage in the transmission wiring harness
- Defective transmission control module (TCM) with damaged internal driver
- Low or contaminated transmission fluid causing valve blockage
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifting
- Transmission slipping or stuck in gear
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect wiring and connectors for damage, corrosion, or loose pins.
Step 3: Test solenoid resistance with a multimeter (specs vary by vehicle).
Step 4: Check power and ground at solenoid connector with key on.
Step 5: If wiring and solenoid are good, test TCM output signals.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with a faulty pressure control solenoid can cause transmission damage, erratic shifting, or complete failure. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
Repair costs typically range from $200 to $600, including parts (solenoid $50-$150) and labor. If the TCM needs replacement, costs can exceed $1,000.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.